I think the issue it seems people are having with these gigs is that so many fans are going for nostalgia reasons which is perfectly understandable, but everyone should also be going because they love the music and want to hear whatever Corgan has to offer.
I watched the trailers to the DVD that is coming out soon (Thanks Ed for posting that link) and Billy even said that he reunited the band for the sake of art, which is probably why he's jamming things out a bit. He's doing that for fun and to test the audience. I think a lot of fans have become too comfortable with the whole concept and sound of what the Pumpkins are suppose to be. this also explains the resentment some fans have with James and D'arcy being replaced. I'll admit I can be like that at times, because for years all I had was their cds and music videos, but essentially the Pumpkins as a band is Billy Corgan's band much like how the Cure is Robert Smith's band.
When I saw the pumpkins back in 2007 at Virgin Festival, I only had two expectations which was to hear "Tonight, Tonight" and "Today" aside from that I had no expectations. I think because of that, the concert didn't feel nostalgic. Not to mention, I was holding the attitude of "finally I am seeing one of my favorite bands." I never thought it was a blast from the past just because the band was suddenly active again. Though I don't listen to the Pumpkins religiously, I do listen to them a lot. They are a part of my past as much as my current life. Their older albums still sound current and not outdated. I still get excited about the idea of new material even if it's stuff that I might not be crazy about.
On a side note, I'm a die-hard STP fan and Oddly enough, seeing them at V-fest this year totally felt like a blast from the past. This was weird to me especially since I've seen them live before back in 2000. I get the feeling the reason it felt like a blast from the past is because I hadn't listen to them on a good basis since 2002 or 2003. Go figure?!
A similar case study to the Pumpkins in my mind would either be Depeche Mode or Nine Inch Nails. Two bands who have fallen off the face of the earth at times and have come back and have been rather active lately. Though they have to please their fans by playing (some) hits, both seem to throw other things in their sets to shake things up a bit. And if you're a pretty good fan of either, you're a good sport about the whole thing even songs that you aren't crazy about from their recent albums.
Needless to say, it'll be interesting to see how the crowd is for Wednesday night's show. I'm quite excited!
ps- How was Eye live??? I was wondering about that. Eye and The End is the Beginning were the two songs I've never heard live from tonight's set. If I was super wealthy and not busy with school work, those two songs would've been the reason I'd come out. (well those songs and Today and the other hits they played tonight...)